Automatic side lock slider for slide fasteners



Sept &'R942. JIJPQUX v 2,2@,42

AUTOMATIC SIDE LOCK SLIDER FOR SLIDE FASTENERS Filed May 18, 1940 A TTORNE Y.

Waiented Sept. 8, i942 UNE FE STATES AUTOMATHC SIDE LOCK SHEER FUR SLIDE FASTENERS Noel .ll. Poux, Meadlvilla-Pa, assignorto Talon, llnc., a corporation of Pennsylvania This invention relates to slide fasteners and, in particular, to the provision of new and improved sliders therefor. I

It is an objectof this invention to provide a new and improved automatic side lock slider for slide fasteners.

It is a further object of this invention to provide such av slider which incorporates new and improved locking means, which slider is of simple, durable and cheap construction, and wherein the lock or locking means may be manually operated, readily and conveniently.

It is a further object'of this'invention to provide such a slider wherein the manually engageable lock operating parts are secured to the slider body in such manner as to eliminate from the slider unit all objectionable dangling and rat-' tling parts.

These and other objects and advantages of the invention will appear from the following description taken in conjunction with the accompanying drawing which forms a part thereof, and will be pointed out in the appended claims.

In the drawing:

Fig. 1 is a fragmentary view, in perspective, of a conventional slide fastener embodying an improved automatic side lock slider according to this invention;

Fig. 2 is a transverse section taken substantially on the plane indicated by the line 2--2 in Fig. ,lfwlth the slider parts in locking position;

Fig. 3 is a view similar to Fig. 2, but showing the parts in unlocked position;

Fig. 4 is a view similar to Fig. 2 of a modified slider construction according to this invention; and

Fig. 5 is a view similar to Fig. 4, but with the parts of the slider of Fig, tin unlocked position.

Sliders, according to this invention, are provided with looking members engaging the top and bottom surfaces of the interlocking fastener members of a slide fastener adjacent the leg portions of the interlocking fastener members. slider having locking means engageable in such manner with the interlocking fastener members of a slide fastener is disclosed in United States Letters Patent No. 1,988,419, granted January 15, 1935, to William L. Gilmore.

In the above-designated patented slider, the

locking means is normally automatically disengaged from interlocking fastener members of a slidefastener, but selectively manually engaged therewith for locking the slider by manipulation of a pull tab member pivotally secured to the slider body.

In slide fastener sliders constructed according to this invention, however, the locking member is normally, automatically engaged between adjacent top and bottom surfaces of adjacent spaced interlocking fastener members of a slide fastener, for automatic locking of the slider, and is manually withdrawn fr m looking engagement by manipulation of an associated finger piece to release the slider for movement longitudinally of the slide fastener.

Referring to the drawing in detail and with reference particularly to Fig. 1, the slide fastener shown therein for purpose of illustration comprises a pair of stringers l and 8, each of whichstringers comprises a tape 9 having a reinforced edge ill, upon which reinforced edge is clampingly or otherwise secured, in known manner, a row of predeterminedly spaced interlocking fastener members l2, the lower ends of the stringers l and 8 being connected, adjacent the lower end of the rows of interlocking fastener members [2 by a suitable bottom stop ll of known'form.

The interlocking fastener members l2 have head portions i l and leg portions l5. The head portions It are provided with upwardly directed crowns or noses, extending from the upper surface of each member I2 adjacent the end of the head portion, and complementary concentric or aligned pockets extending inwardly from the lower surface of each interlocking fastener member.

Due to the spaced relationship 01' adjacent interlocking fastener members l2 on each reinforced edge lll, spaces are provided between the upper and lower surfaces of adjacent interlocking fastener members l2, into which spaces the locking members or sliders according to this invention project, adjacent the leg portions l5 of the fastener members to perform the locking operation, as hereinafter most clearly explained.

The slider is generally designated 20 and comprises a back wing 2| and front wing 22 provided with marginal side flanges, which flanges cooperate with surfaces of the connecting neck or wedge member 23 which is integral or rigidly secured between the upper ends of the spaced wings 2| and 22 to form a substantially V-shaped upwardly diverging guide channel for the interlocking fastener members l2 of the slide fastener. Extending forwardly from the front wing 22 is the longitudinally disposed pivot lug 24 which is preferably spaced slightly to one side of the longitudinal center line of the front wing 22 and the slider proper.

Adjacent its. lower end, the outer surface of the front wing 22 of the slider illustrated in Figs. 1, 2 and 3, is provided with a locking member receiving recess 25 which extends transversely from the base of the pivot lug 24, and

from the outer end of which extends an aperture or opening 26, leading into the fastener member guiding channel of the slider.

The locking means is generally designated 30 and includes a finger piece portion formed by a front wall 3| overlying the front or outer end of the pivot lug 24, end walls 32 disposed outside the ends of the pivot ing 24, and a side wall 33 which is disposed atone side of the pivot. lug 24 and substantially parallel with the pivot lug 24 in .the locking position. The end walls 32 are provided with suitable apertures for receiving pivot pin means 34 secured to the pivot lug 24 and extending through the apertures in the end walls 32 of the .iinger piece portion of the locking means 30, for securing this portion pivot-' ally to the pivot lug 24.

In order to facilitate manual operation of the locking means, the outer side wall of the pivot lug 24 and the side wall 33 of the finger piece portion of the locking member are recessed, as shown particularly in Fig. 3. Extending transversely from the side wall 33 at the lowerend of the slider is a locking arm 35 which is provided with a locking projection 36 at its outer end.

The locking member thus comprises an upstanding finger piece with a rigidly attached locking arm having a locking projection at its end. The locking arm 35 is disposed in the above-described recess 25 in the locked position of the slider, as shown in Fig. 2, and in that position the locking projection 36 extends through the opening'or aperture 26 into the fastener memberguiding channel of the slider.

Included in the lockingmeans, for making the locking means automatic by constantly biasing the locking projection 36 toward locking position, suitable resilient means such as the spring 31 is disposed between the inner adjacent surfaces of the pivot lug 24 and the side wall 33 of the finger piece portion of the locking means. This spring 3'! constantly tilts the locking member in clockwise direction about the pivot pin means 34 asan axis. As shown, aligned sockets may be provided in the adjacent surfaces of the pivot lug 24 and locking member side walls 33 for retaining the resilient biasing means in position.

From the above description and from the drawing, it will clearly appear that the locking arm 35 is completely recessed in the front wing 22 in the locked position of the slider. In that position, as shown in Figs. 1 and 2, the engagement of adjacent surfaces of the locking arm 35 and receiving irecess 25 limit the clockwise movement of the locking means 30 with respect to the supporting pivot lug 24 under the influence of the yielding or resilient means comprised by spring 31. The locking projection 36 is thus constantly urged by the biasing means 31 to a predetermined locking position, as shown in Fig. 2, wherein it projects into the fastenermember guiding channel and into the space between the adjacent top and bottom surfaces of a pair of adjacent spaced interlocking fastener members l2 in the fastener member guiding channel.

When it isdesired to release or unlock the slider, it is merely necessary, as shown in Fig. 3, to press the side wall 33 of the finger piece and the pivot lug 24 together, against the force of the biasing means 31, to cause counterclockwise pivotal movement of the locking means 30 with respect to the pivot lug 24 which is integral with the front wing 22, thus to withdraw the locking projection 36, outwardly in the aperture or opening 26, from engagement with the interlocking fastener members l2 in the guiding channel of the slider.

The embodiment illustrated in Figs. 4 and 24 and provides a manually engageable. handle comprising a substantially closed body. This closed body is provided at its sides with recesses or depressions, facilitating engagement, as shown in Fig. 3, for operating the slider, and the closed nature of the handle thus formed effectively prevents catching of the handle of the slider in clothing or other. materials, with which the handle of the slider may have contact.

From the above description, it will clearly ap-,

pear that I have produced a new and improved automatic side lock slide fastener slider which' is durable, which is cheap and of simple construction, wherein the locking means is positive in operation and easy to release manually. It will furthermore appear that I have obviated from this slider construction all dangling parts such as conventional slide fastener pulls or chains, heretofore necessary for manual operation of the locking means'of conventional slide fasteners.

It is, of course, to be understood that the above description is merely illustrative and in nowise limiting and that I desire to comprehend within my invention all modifications included within the scope of the appended claims.

.Having thus fully described my invention, what I claim as new and desire to secure by Letters Patent is:

1. In a tabless slider for slide fasteners, a slider body comprising a front wing member and a back wing member spacedly connected at their upper ends. and forming a fastener member guiding channel therebetween, said front wing member having therein an opening extending into said channel, a locking member pivotally connected to said front wing member about a longitudinal axis of said front wing member and spaced transversely from said opening, said lockis generally similar to that shown in Figs. 1 to 3,

ing member extending from the point of connection with said wing member to said opening and terminating in a projection directed toward said opening and aligned therewith, yielding means normally rocking said locking member about said axis toward said projection for urging said projection through said opening into locking engagement with fastener members in said channel, and an upstanding finger piece on said locking member rigid therewith and directly manually engageable for rocking said locking member in the opposite direction, against said 1 yielding means, for withdrawing said projection,

through said opening, from said channel, to unlock said slider.

2. In a tabless slider for slide fasteners, a slider body comprising a pair of wing members spacedly connected at their upper ends and forming a fastener member guiding channel therebetween, one of said wing membershaving therein an opening extending into said channeL-an upstanding pivot lug on said last-named wing member spaced laterally from said opening, a lockabout a longitudinal axis of said lug. said lockin'g member having an upstanding finger piece and a transverse locking arm, said locking arm extending transversely to said opening and terminating ina locking projection directed toward said fastener member guiding channel and aligned with saidopening, and yielding means acting between said pivot lug and saidfinger piece for normally spreading apart said pivot lug and said finger pieceand biasing said locking member rockingly about said longitudinal axis to urge said projection through said opening into locking engagement with fastener members in said channel.

3. In a tabless slider for slide fasteners, a slider body comprising a pair of wing members whereby said finger piece telescopically encloses saidpivot lug and said yielding means. I

5. In a tabless slider for slide fasteners, a

- slider body comprising a pair of wing members spacedly connected at their upper ends and formminating in a locking projection directed toward said fastener member guiding channel and aligned with said opening, and yielding means acting between said pivot lug and said finger piece for normally spreading apart said lug and said finger piece and biasing said locking member rockingly about said longitudinal axis to urge said projection through said opening into locking engagement with fastener members in said channel, said finger piece having an upstanding wall with outerand end walls extending therefrom and substantially perpendicular thereto, and said side and end walls overlying adjacent portions of said pivot lug whereby said finger piece telescopically encloses said pivot lug.

4. In a tabless slider for slide fasteners, a slider body comprising a pair of wing members spacedly connected at their upper ends and forming a fastener member guiding channel therebetween,

one of said wing members having therein anopening extending into said channel, an upstanding pivot lug on said last-named wing member spaced laterally from said opening, a locking member pivotally connected to said pivot lug about a longitudinal axis of said lug, said lock-. ing member having an upstanding finger piece and a transverse locking arm, said locking arm extending transversely to said opening and terminating in a locking projection directed toward said fastener member guiding channel and spacedly connected at their upper ends and forming a fastener member guiding channel therebetween, one of said wing members having therein an opening exten 'into the lower end of said channel at one si e, an upstanding pivot lug on said last-named wing member spaced laterally from said opening, a locking member pivotally connected to said pivot ing about a longitudnal axis of said lug, said locking member having an upstanding finger piece with walls enclosing one side surface, the outer surface and the endsurfaces of said pivot lug, a transverse lockingarm rigid with said finger piece, said locking arm extending to said opening and terminating in a locking projection directed toward said fastener member guiding channel and aligned with said opening, and a spring enclosed between the walls of said finger piece and said .pivot lug and acting between said pivot lug and said finger piece for normally biasing said looking member rockingly about said longitudinal I axis of said lug to urge said projection through said opening into locking engagement with fastener members in said channel, said last-named wing'member having a recess in its outer surface extending transversely from saidpivot lug to said opening for receiving said locking arm and disposing its outer surfaceflush with the outer surface of said last-named wing member in the lockin position of said locking member, and said pivot lug and said upstanding finger piece having thereon grip portions manually engageable for squeezing said lug and said finger piece together against the force of said spring for rocking said locking member in reverse direction about said longitudinal axis to unlock the slider by withdrawing said locking projection through said opening from engagement with fastener members in said fastener member guiding channel.

6. In a tabless slider for slide fasteners, a slider body comprising a pair of wing members with side flanges spacedly connected by a wedge at their upper ends with their side fianges forming with saidlwedge a fastener member guiding channel therebetween, one of said wingmembers having thereinav slot adjacent its lower end extending through one sidefiange into one side of said channel, an upstanding pivot lug on said last-named wing member spaced laterally aligned with. said opening, and yielding means acting between said pivot mg and said finger (piece for normally spreading apart said ing and said finger piece for biasing said locking mem- ,ber rockingly about said longitudinal axis of said lug to urge said projection through said opening into locking engagement with fastener members in said channel, said last-named wing member having a recess in its outer surface extending transversely from said pivot lug to said opening for receiving said lockingiarm and disposing its outer surface flush with the outer surface of said last-named wing member, and said finger piece having an upstanding wall with outer and walls extending therefrom and substantially perpendicular thereto, said side and end walls from said opening, a locking member pivotally connected to said pivot lug on a longitudinal axis of said lug; said locking member having an upstanding finger piece and'a, transverse locking arm, said locking arm extending transversely to said opening and terminating in a locking projection directed inwardly of said fastener member'guiding channel and aligned with said slot,- a terminal extension on said locking projection substantially perpendicular thereto, and yielding means acting between said pivot lug and said finger piece for normally biasing said locking member rockingly about said longitudinal axis to urge said locking projection into alignment with flange portions at each side of said. slot while urging the terminal extension of said locking projection into locking position between facing top and bottom-surfaces of adjacent fastener members in said channel, adjacent the ends of the legs of said fastener members.

, NOEL J. POUX.

.1 Patent No. 2,295,136.

CERTIFICATE OF CORREC'HON.

September 8, 1914.2.

NOEL J. roux.

It is hereby certified that error appears in the printed specific ationof the above numbered patent requiring correction as follows: Page}, first column, ,line 75, claimh, before "walls" ns rt and that the aaid Letters Patent should be read with this correction thereih that the me may conform to the record of the case in the Patent Office.

Signed and sealed this l'Oth day of November, A. 1). 191g.

1 Henry Van Aredal'e, I (Seal); Acting Connnissioner offPatenlta. 

